Federal health officials are warning consumers not to eat certain heat-and-eat beef meatball pasta meals sold at Walmart stores because they may be contaminated with listeria bacteria previously linked to a .

The U.S. Agriculture Department issued late Thursday for Marketside Linguine with Beef Meatballs & Marinara Sauce sold in refrigerated 12-ounce clear plastic trays. The products have best-by dates of Sept. 22 through Oct. 1 and may still be in consumer's refrigerators.

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